I have a laptop with the following configuration: 4 GB RAM , 1 GB graphic card & i5 processor. I have installed windows 7 home basic as my operating system. I recently installed GTA IV on my laptop and I am facing a lot of problems while playing it. When I start the game, it does not appear in full screen. It by default sets a small screen size which is smaller as compared to the original full size of the laptop. Then when I try to save the game, it does not let me do it and hence I have to play it again and again. All my saved data is lost due to this. An error pops up which says log on to the rockstar website. Please help me with this problem.